Effect of micro-Al2O3 contents on mechanical property of carbon fiber reinforced epoxy matrix composites

Wang, Zhi; Huang, Xueyou; Bai, Liyan; Du, Ruxu; Liu, Yaqing; Zhang, Yanfei; Zhao, Guizhe

doi:10.1016/j.compositesb.2016.01.052

Cited by 45 publications

(18 citation statements)

References 34 publications

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“…Worse still, some occasional clustering can occur, and then influence the share and transfer of local stress , which can be further proved in the following discussions. That is the reason why the storage modulus does not increase continuously, and begins to drop when the addition content of nano‐silica is more than 2.5 wt% in CF/PEEK composites , as shown in Fig. a.…”

Section: Resultsmentioning

confidence: 98%

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

2018

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The mechanical performance of modified multiscale carbon fiber (CF) reinforced poly(ether-ether-ketone) (PEEK) composites is improved through wet powder impregnation. The complex PEEK suspension is prepared by mixing nano-silica and PEEK powders in water homogeneously. The CFs are pulled through the complex PEEK suspension, and the modified multiscale PEEK prepregs and composites are prepared by a series of drying and consolidation process. The increasing energy storage, decreasing tan d max and the area under the tan d curve in the dynamic mechanical tests indicate strong interface interactions of modified multiscale CF/PEEK composites. The interlaminar shear strength increases by 15.6% from 72.2 to 83.5 MPa for 2.5 wt% nano-silica addition, showing significant improvement in resisting the delamination damage. Besides, the same addition makes the flexural strength and modulus increase by 13.9 and 8.6%, respectively. The modified multiscale CF/PEEK composites exhibit higher flexural strength and modulus at elevated temperature than the pristine composites. Furthermore, the enhancement mechanisms for the modified multiscale CF/PEEK composites are proposed and illustrated, which contributes to future research on multiscale enhancement for conventional composites. POLYM. COMPOS., 00:000-000, 2018. FIG. 5. The tensile fracture surfaces of PEEK nanocomposites. (a) Without nano-silica, (b) 1 wt% nanosilica, (c) 5 wt% nano-silica, (d)10 wt% nano-silica. FIG. 6. The dynamic mechanical performance. (a) Storage modulus, (b) Loss modulus, (c) The damping term-tan d. [Color figure can be viewed at wileyonlinelibrary.com]

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Section: Resultsmentioning

confidence: 98%

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

2018

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“…Therefore, in nano GF composite the fracture surface areas increase as compared to control GF composite resulting improvement of ILSS of the nano composites. This may be because of nano Al 2 O 3 and TiO 2 particles prevented the micro crack growth and detoured it …”

Section: Resultsmentioning

confidence: 99%

Evaluation of mechanical properties of Al₂O₃ and TiO₂ nano filled enhanced glass fiber reinforced polymer composites

Nayak

Mahato

Routara

et al. 2016

J of Applied Polymer Sci

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The present investigation has emphasized the implication of nano fillers (Al2O3 and TiO2) combined additions in glass fiber reinforced polymer composite on the variation of interlaminar shear strength (ILSS). The experiment has also investigated the effect of crosshead speed during testing and subsequent fracture surface analysis to find out the possible failure modes by scanning electron micrograph examinations. Loss and storage modulus have been experimentally evaluated to support the new findings in the present experimental design. It has been observed that the concurrent presence of nano Al2O3 and TiO2 fillers improves the ILSS. Dynamic mechanical thermal analysis indicated that, the addition of nano fillers reduces the storage and loss modulus of the composites. However, glass transition temperature has not been altered by the nano fillers addition. Box–Behnken design of experiment of surface response methodology has been adopted to optimize the filler content and crosshead speed. A second order mathematical model has been developed and the predicted optimum input parameters are 0.3 wt % Al2O3, 0.15 wt %TiO2, and 500 mm/min crosshead speed. Furthermore, the model predicted results are compared with experimental one and found a close agreement between them. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44274.

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“…This may be attributed to the interaction between perlite particles and fibers being more effective to transfer load through the epoxy resin. Several studies [25,26] have shown that inclusion of perlite in the composites contributes significantly to the improvement in mechanical properties with the addition of Pr filler. The decrease in the strength values may be ascribed to the particle aggregation, when the particle content reaches to saturation state in GFRE composite, forming stress concentration points and consequently weaknesses in the composite [26,27].…”

Section: Tensile Testsmentioning

confidence: 99%

Tensile and impact characterization of S-glass/epoxy composite laminates containing microscale borax, perlite, and sewage sludge ash particles

Bulut

Alsaadi

Erkliğ

2018

J Braz. Soc. Mech. Sci. Eng.

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In this study, influences of microscale particles (borax, perlite, and sewage sludge ash) on tensile and impact resistances of S-glass/epoxy composite laminates were experimentally investigated. During the production of test samples, epoxy resin was modified incorporating them it inorganic and waste fillers at different weight ratios (0, 5, 10, 15, and 20% for borax, and 1, 2, 5, and 10% except for perlite). Damage mechanisms and impact properties of particle-modified composites were characterized by charpy impact tests. Results showed that incorporation of particulate fillers in the S-glass/epoxy composites resulted in the significant increases of the tensile and impact resistances up to the critical particle loading, followed by the decreasing trend due to the decreasing interfacial strength between matrix-particle-fiber interactions.

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Effect of micro-Al2O3 contents on mechanical property of carbon fiber reinforced epoxy matrix composites

Cited by 45 publications

References 34 publications

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

Evaluation of mechanical properties of Al₂O₃ and TiO₂ nano filled enhanced glass fiber reinforced polymer composites

Tensile and impact characterization of S-glass/epoxy composite laminates containing microscale borax, perlite, and sewage sludge ash particles

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Effect of micro-Al2O3 contents on mechanical property of carbon fiber reinforced epoxy matrix composites

Cited by 45 publications

References 34 publications

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

Multiscale enhancement behavior of nano‐silica modified CF/PEEK composites prepared by wet powder impregnation

Evaluation of mechanical properties of Al2O3 and TiO2 nano filled enhanced glass fiber reinforced polymer composites

Tensile and impact characterization of S-glass/epoxy composite laminates containing microscale borax, perlite, and sewage sludge ash particles

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Evaluation of mechanical properties of Al₂O₃ and TiO₂ nano filled enhanced glass fiber reinforced polymer composites